Results 61 to 70 of about 53,403 (252)

Bose-Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves

Advances in High Energy Physics, 2017
We present a comparative confrontation of both the Bose-Einstein Condensate (BEC) and the Navarro-Frenk-White (NFW) dark halo models with galactic rotation curves.
M. Dwornik, Z. Keresztes, E. Kun, L. Á. Gergely   +3 more
doaj   +1 more source

The Low Surface Brightness Extent of the Fornax Cluster [PDF]

, 2000
We have used a large format CCD camera to survey the nearby Fornax cluster and its immediate environment for low luminosity low surface brightness galaxies.
A. Kambas, Carignan C., Davies J., Davies J., Davies J., Davies J. I., Disney M., Disney M. J., Evans R., Irwin M., Irwin M., J. A. Haynes, J. I. Davies, Jones J., Kauffman G., Maddox S., Mo H., Morshidi-Esslinger Z., Phillipps S., R. M. Smith, S. Bianchi, Schwartzenberg J., Smith R., Theuns T., Trentham N., van den Bergh S., Wilson G.   +26 more
core   +3 more sources

Silicon‐Embedded Multifunctional Heterogeneous Integration for Miniaturized Photoplethysmography Detection Devices

Advanced Science, EarlyView.
ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen, Shizun Hu, Zhou Yang, Shitao Shen, Pan Zhang, Han Xu, Chi Zhang, Wei Wang   +7 more
wiley   +1 more source

A Sample of Nearby Isolated Dwarf Galaxies: A First Look at the Mass Function of Field Dwarfs

The Astrophysical Journal
We present the results of the Exploration of Local VolumE Survey-Field, a survey of the dwarf galaxies in the Local Volume (LV; D  
Scott G. Carlsten, Jiaxuan Li, Jenny E. Greene, Alex Drlica-Wagner, Shany Danieli   +4 more
doaj   +1 more source

MORPHOFIT: An automated galaxy structural parameters fitting package

Frontiers in Astronomy and Space Sciences, 2023
In today’s modern wide-field galaxy surveys, there is the necessity for parametric surface brightness decomposition codes characterised by accuracy, small degree of user intervention, and high degree of parallelisation.
Luca Tortorelli, Luca Tortorelli, Amata Mercurio, Amata Mercurio   +3 more
doaj   +1 more source

Dissecting the luminosity function of the Coma cluster of galaxies using CFHT wide field images

, 2001
[Abridged] We determined the luminosity function (LF) of the Coma cluster galaxies selected by luminosity, and the LF bi-variate in central brightness. The Coma cluster and control fields were imaged using the CFH12K (42x28 arcmin) and UH8K (28x28 arcmin)
Andreon S., Andreon S., Andreon S., Biviano A., de Blok W. J. G., de Jong R. S., Driver S. P., Efstathiou G., Garilli B., Godwin J. G., Irwin M. J., J.‐C. Cuillandre, Jerjen H., Lobo C., Lumsden S. L., S. Andreon, Trentham N., van den Hoek L. B., Zucca E.   +18 more
core   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

Gas-rich, Field Ultra-diffuse Galaxies Host Few Gobular Clusters

The Astrophysical Journal Letters, 2022
We present Hubble Space Telescope imaging of 14 gas-rich, low-surface-brightness galaxies in the field at distances of 25–36 Mpc, with mean effective radii and g -band central surface brightnesses of 1.9 kpc and 24.2 mag arcsec ^−2 .
Michael G. Jones, Ananthan Karunakaran, Paul Bennet, David J. Sand, Kristine Spekkens, Burçin Mutlu-Pakdil, Denija Crnojević, Steven Janowiecki, Lukas Leisman, Catherine E. Fielder   +9 more
doaj   +1 more source

Structural Characteristics and Stellar Composition of Low Surface Brightness Disk Galaxies

, 1993
We present UBVI surface photometry of a sample of low surface brightness (LSB) disk galaxies. LSB disk galaxies are fairly well described as exponential disks with no preferred value for either scale length, central surface brightness, or rotational ...
Bothun, Greg, McGaugh, Stacy
core   +1 more source

The dependence of HII region properties on global and local surface brightness within galaxy discs [PDF]

, 2008
Using B, R, and H-alpha images of roughly equal-sized samples of low surface brightness (LSB) and high surface brightness (HSB) galaxies (~40 galaxies apiece), we have explored the dependence of HII region properties on local and global disc surface ...
Barnes, Blanton, Bothun, Bothun, Bothun, Bruzual, Calzetti, de Blok, de Blok, de Blok, Diaz, Elmegreen, Freeman, G. D. Bothun, Helmboldt, Helmboldt, Helmboldt, Impey, J. F. Helmboldt, K. O'Neil, Kennicutt, Kraan-Korteweg, M. S. Oey, Matthews, Matthews, McGaugh, McGaugh, McGaugh, Mihos, O'Neil, O'Neil, O'Neil, O'Neil, O'Neil, Oey, Oey, Osterbrock, R. A. M. Walterbos, Salpeter, Schneider, Schombert, Schommer, Scoville, Scowen, Smith, Thilker, Thilker, Tremonti, Tully, von Hippel, York   +50 more
core   +1 more source